JPS5635075A - Echo system of ultrasonic wave pulse - Google Patents

Echo system of ultrasonic wave pulse

Info

Publication number
JPS5635075A
JPS5635075A JP10965679A JP10965679A JPS5635075A JP S5635075 A JPS5635075 A JP S5635075A JP 10965679 A JP10965679 A JP 10965679A JP 10965679 A JP10965679 A JP 10965679A JP S5635075 A JPS5635075 A JP S5635075A
Authority
JP
Japan
Prior art keywords
oscillator
voltage
energy
thyristor
charging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10965679A
Other languages
Japanese (ja)
Inventor
Yasuto Takeuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP10965679A priority Critical patent/JPS5635075A/en
Publication of JPS5635075A publication Critical patent/JPS5635075A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/524—Transmitters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To increase the energy efficiency for drive by avoiding the necessity of storage capacitor of drive energy, by charging the static capacitance specific to oscillator with DC voltage, and driving the oscillator through momentary discharge with thyristor. CONSTITUTION:The static capacitance of oscillator TD is charged with DC voltage HV in advance and after charging, the thyristor S in parallel with oscillator TD is triggered to ON, and the charge of oscillator is rapidly discharged to produce the ultrasonic wave oscillation. After this discharge, the reflection wave signal returned during restart of charging by turning-off of the thyristor is detected at the oscillator and received at the circuit RCV via the AC coupling capacitor. Thus, as the exciting energy of oscillator, DC voltage charged in the oscillator is used, allowing to make unnecessary the energy storage capacitor. Accordingly, the exciting voltage is not divided, allowing to make excellent the energy efficiency of excitation.
JP10965679A 1979-08-30 1979-08-30 Echo system of ultrasonic wave pulse Pending JPS5635075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10965679A JPS5635075A (en) 1979-08-30 1979-08-30 Echo system of ultrasonic wave pulse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10965679A JPS5635075A (en) 1979-08-30 1979-08-30 Echo system of ultrasonic wave pulse

Publications (1)

Publication Number Publication Date
JPS5635075A true JPS5635075A (en) 1981-04-07

Family

ID=14515811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10965679A Pending JPS5635075A (en) 1979-08-30 1979-08-30 Echo system of ultrasonic wave pulse

Country Status (1)

Country Link
JP (1) JPS5635075A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186796U (en) * 1984-05-18 1985-12-11 オンキヨー株式会社 electromechanical vibration transducer
JPS60193794U (en) * 1984-05-31 1985-12-23 オンキヨー株式会社 board speaker
JPH02883U (en) * 1988-06-14 1990-01-05
JPH044498U (en) * 1990-04-26 1992-01-16
JPH0616094U (en) * 1991-08-27 1994-03-01 秀 娥 楊 Stone

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186796U (en) * 1984-05-18 1985-12-11 オンキヨー株式会社 electromechanical vibration transducer
JPS60193794U (en) * 1984-05-31 1985-12-23 オンキヨー株式会社 board speaker
JPH02883U (en) * 1988-06-14 1990-01-05
JPH044498U (en) * 1990-04-26 1992-01-16
JPH0616094U (en) * 1991-08-27 1994-03-01 秀 娥 楊 Stone

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